diff --git a/app/Member/FilterScope.php b/app/Member/FilterScope.php
index c5a2d219..2bed86a9 100644
--- a/app/Member/FilterScope.php
+++ b/app/Member/FilterScope.php
@@ -32,6 +32,8 @@ class FilterScope extends Filter
         public array $groupIds = [],
         public array $include = [],
         public array $exclude = [],
+        public ?bool $hasFullAddress = null,
+        public ?bool $hasBirthday = null,
     ) {
     }
 
@@ -60,6 +62,22 @@ class FilterScope extends Filter
                     $query->where('bill_kind', BillKind::fromValue($this->billKind));
                 }
 
+                if (true === $this->hasFullAddress) {
+                    $query->whereNotNull('address')->whereNotNull('zip')->whereNotNull('location')->where('address', '!=', '')->where('zip', '!=', '')->where('location', '!=', '');
+                }
+
+                if (false === $this->hasFullAddress) {
+                    $query->where(fn ($q) => $q
+                        ->orWhere('address', '')->orWhereNull('address')
+                        ->orWhere('zip', '')->orWhereNull('zip')
+                        ->orWhere('location', '')->orWhereNull('location')
+                    );
+                }
+
+                if (true === $this->hasBirthday) {
+                    $query->whereNotNull('birthday');
+                }
+
                 if (count($this->groupIds)) {
                     $query->whereIn('group_id', $this->groupIds);
                 }
diff --git a/app/Member/Member.php b/app/Member/Member.php
index 13998e20..0d74a23d 100644
--- a/app/Member/Member.php
+++ b/app/Member/Member.php
@@ -161,7 +161,7 @@ class Member extends Model implements Geolocatable
 
     public function getEfzLink(): ?string
     {
-        return $this->isLeader()
+        return $this->isLeader() && $this->address && $this->zip && $this->location && $this->birthday
             ? route('efz', ['member' => $this])
             : null;
     }
@@ -436,11 +436,14 @@ class Member extends Model implements Geolocatable
             'VERSION' => '3.0',
             'FN' => $this->fullname,
             'N' => [$this->lastname, $this->firstname, '', '', ''],
-            'BDAY' => $this->birthday->format('Ymd'),
             'CATEGORIES' => 'Scoutrobot',
             'UID' => $this->slug,
         ]);
 
+        if ($this->birthday) {
+            $card->add('BDAY', $this->birthday->format('Ymd'));
+        }
+
         if ($this->main_phone) {
             $card->add('TEL', $this->main_phone, ['type' => 'voice']);
         }
diff --git a/app/Member/MemberRequest.php b/app/Member/MemberRequest.php
index 12cb8397..4db6adda 100644
--- a/app/Member/MemberRequest.php
+++ b/app/Member/MemberRequest.php
@@ -12,6 +12,7 @@ use App\Subactivity;
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Support\Str;
 use Illuminate\Validation\Rule;
+use Illuminate\Validation\Validator;
 use Zoomyboy\Phone\ValidPhoneRule;
 
 class MemberRequest extends FormRequest
@@ -51,15 +52,10 @@ class MemberRequest extends FormRequest
             }),
             'firstname' => 'required',
             'lastname' => 'required',
-            'address' => 'required',
-            'zip' => 'required|numeric',
-            'location' => 'required',
-            'birthday' => 'date|required',
             'country_id' => 'required|exists:countries,id',
             'email' => 'nullable|email',
             'email_parents' => 'nullable|email',
             'bill_kind' => ['nullable', Rule::in(BillKind::values())],
-            'joined_at' => 'date|required',
             'confession_id' => 'nullable|exists:confessions,id',
             'ps_at' => 'nullable|date_format:Y-m-d',
             'more_ps_at' => 'nullable|date_format:Y-m-d',
@@ -76,7 +72,6 @@ class MemberRequest extends FormRequest
             'invoice_address' => '',
             'gender_id' => 'nullable|exists:genders,id',
             'region_id' => 'nullable|exists:regions,id',
-            'nationality_id' => 'required|exists:nationalities,id',
             'children_phone' => ['nullable', new ValidPhoneRule('Telefon (Kind)')],
             'fax' => ['nullable', new ValidPhoneRule('Fax')],
             'other_country' => '',
@@ -122,4 +117,23 @@ class MemberRequest extends FormRequest
         }
         ResyncAction::dispatch();
     }
+
+    public function withValidator(Validator $validator): void
+    {
+        $this->namiIfElse($validator, 'birthday', 'date|required');
+        $this->namiIfElse($validator, 'nationality_id', 'required|exists:nationalities,id');
+        $this->namiIfElse($validator, 'address', 'required|max:255');
+        $this->namiIfElse($validator, 'zip', 'required|numeric');
+        $this->namiIfElse($validator, 'location', 'required|max:255');
+        $this->namiIfElse($validator, 'joined_at', 'date|required');
+    }
+
+    public function namiIfElse(Validator $validator, string $attribute, string $rules): void
+    {
+        $request = request();
+        $when = fn () => true === $request->input('has_nami');
+        $notWhen = fn () => true !== $request->input('has_nami');
+        $validator->sometimes($attribute, $rules, $when);
+        $validator->sometimes($attribute, 'present', $notWhen);
+    }
 }
diff --git a/database/migrations/2023_07_23_203851_edit_members_table.php b/database/migrations/2023_07_23_203851_edit_members_table.php
new file mode 100644
index 00000000..7df859f3
--- /dev/null
+++ b/database/migrations/2023_07_23_203851_edit_members_table.php
@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class() extends Migration {
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('members', function (Blueprint $table) {
+            $table->unsignedBigInteger('nationality_id')->nullable(true)->change();
+            $table->date('birthday')->nullable(true)->change();
+            $table->string('address')->nullable(true)->change();
+            $table->string('zip')->nullable(true)->change();
+            $table->string('location')->nullable(true)->change();
+            $table->date('joined_at')->nullable(true)->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('members', function (Blueprint $table) {
+            $table->unsignedBigInteger('nationality_id')->nullable(false)->change();
+            $table->date('birthday')->nullable(false)->change();
+            $table->string('address')->nullable(false)->change();
+            $table->string('zip')->nullable(false)->change();
+            $table->string('location')->nullable(false)->change();
+            $table->date('joined_at')->nullable(false)->change();
+        });
+    }
+};
diff --git a/resources/js/views/contribution/VIndex.vue b/resources/js/views/contribution/VIndex.vue
index 99995c7c..e5a34c60 100644
--- a/resources/js/views/contribution/VIndex.vue
+++ b/resources/js/views/contribution/VIndex.vue
@@ -86,6 +86,8 @@ export default {
                 var response = await this.axios.post('/api/member/search', {
                     filter: {
                         search: event,
+                        hasBirthday: true,
+                        hasFullAddress: true,
                     },
                 });
 
diff --git a/resources/js/views/member/VForm.vue b/resources/js/views/member/VForm.vue
index c2a916c4..ba27c954 100644
--- a/resources/js/views/member/VForm.vue
+++ b/resources/js/views/member/VForm.vue
@@ -27,14 +27,14 @@
                             <f-select id="gender_id" name="gender_id" :options="meta.genders" v-model="inner.gender_id" label="Geschlecht" size="sm"></f-select>
                             <f-text id="salutation" v-model="inner.salutation" size="sm" label="Anrede"></f-text>
                         </div>
-                        <f-select :options="meta.nationalities" id="nationality_id" v-model="inner.nationality_id" label="Staatsangehörigkeit" name="nationality_id" size="sm" required></f-select>
+                        <f-select :options="meta.nationalities" id="nationality_id" v-model="inner.nationality_id" label="Staatsangehörigkeit" name="nationality_id" size="sm"></f-select>
                         <f-text id="firstname" v-model="inner.firstname" size="sm" label="Vorname" required></f-text>
                         <f-text id="lastname" v-model="inner.lastname" size="sm" label="Nachname" required></f-text>
-                        <f-text id="address" v-model="inner.address" size="sm" label="Adresse" required></f-text>
+                        <f-text id="address" v-model="inner.address" size="sm" label="Adresse"></f-text>
                         <f-text id="further_address" v-model="inner.further_address" size="sm" label="Adresszusatz"></f-text>
-                        <f-text id="zip" v-model="inner.zip" size="sm" label="PLZ" required></f-text>
-                        <f-text id="location" v-model="inner.location" size="sm" label="Ort" required></f-text>
-                        <f-text type="date" id="birthday" v-model="inner.birthday" size="sm" label="Geburtsdatum" required></f-text>
+                        <f-text id="zip" v-model="inner.zip" size="sm" label="PLZ"></f-text>
+                        <f-text id="location" v-model="inner.location" size="sm" label="Ort"></f-text>
+                        <f-text type="date" id="birthday" v-model="inner.birthday" size="sm" label="Geburtsdatum"></f-text>
                         <f-select :options="meta.regions" name="region_id" id="region_id" v-model="inner.region_id" label="Bundesland" size="sm"></f-select>
                         <f-select :options="meta.countries" id="country_id" v-model="inner.country_id" label="Land" name="country_id" size="sm" required></f-select>
                         <f-text id="other_country" v-model="inner.other_country" label="Andere Staatsangehörigkeit" size="sm"></f-text>
diff --git a/resources/js/views/member/boxes/Stamm.vue b/resources/js/views/member/boxes/Stamm.vue
index f4ceb428..e35c2d7c 100644
--- a/resources/js/views/member/boxes/Stamm.vue
+++ b/resources/js/views/member/boxes/Stamm.vue
@@ -5,7 +5,7 @@
         <ui-text-display label="Geburtsdatum" :value="inner.birthday_human"></ui-text-display>
         <ui-text-display label="Alter" :value="inner.age"></ui-text-display>
         <ui-text-display label="Bundesland" :value="inner.region.name"></ui-text-display>
-        <ui-text-display label="Nationalität" :value="inner.nationality.name"></ui-text-display>
+        <ui-text-display label="Nationalität" :value="inner.nationality?.name"></ui-text-display>
         <ui-text-display v-show="inner.other_country" label="Andere Staatsangehörigkeit" :value="inner.other_country"></ui-text-display>
     </div>
 </template>
diff --git a/tests/EndToEnd/MemberIndexTest.php b/tests/EndToEnd/MemberIndexTest.php
index 8e1a716c..24953fc7 100644
--- a/tests/EndToEnd/MemberIndexTest.php
+++ b/tests/EndToEnd/MemberIndexTest.php
@@ -25,6 +25,33 @@ class MemberIndexTest extends TestCase
         $this->assertCount(1, $this->inertia($response, 'data.data'));
     }
 
+    public function testItHandlesAddress(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $group = Group::factory()->create();
+        Member::factory()->defaults()->for(Group::factory())->create(['address' => '']);
+        Member::factory()->defaults()->for(Group::factory())->create(['zip' => '']);
+        Member::factory()->defaults()->for(Group::factory())->create(['location' => '']);
+
+        $response = $this->callFilter('member.index', ['has_full_address' => true]);
+        $noResponse = $this->callFilter('member.index', ['has_full_address' => false]);
+
+        $this->assertCount(0, $this->inertia($response, 'data.data'));
+        $this->assertCount(3, $this->inertia($noResponse, 'data.data'));
+    }
+
+    public function testItHandlesBirthday(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $group = Group::factory()->create();
+        $member = Member::factory()->defaults()->for(Group::factory())->create(['birthday' => null]);
+
+        $response = $this->callFilter('member.index', ['has_birthday' => true]);
+
+        $this->assertCount(0, $this->inertia($response, 'data.data'));
+        $member->delete();
+    }
+
     public function testItFiltersForSearchButNotForPayments(): void
     {
         $this->withoutExceptionHandling()->login()->loginNami();
diff --git a/tests/Feature/Member/DavTest.php b/tests/Feature/Member/DavTest.php
index 73cc1b25..45e85e6e 100644
--- a/tests/Feature/Member/DavTest.php
+++ b/tests/Feature/Member/DavTest.php
@@ -76,6 +76,15 @@ VCARD;
         $this->assertEquals('Max Muster', $card->FN->getValue());
     }
 
+    public function testItDoesntNeedBirthday(): void
+    {
+        $member = Member::factory()->defaults()->create(['birthday' => null]);
+
+        $card = $member->toVcard();
+
+        $this->assertNull($card->BDAY);
+    }
+
     public function testItSetsTheBirthday(): void
     {
         $member = Member::factory()->defaults()->create(['birthday' => '1993-05-06']);
diff --git a/tests/Feature/Member/IndexTest.php b/tests/Feature/Member/IndexTest.php
index 17c38130..4f02ae6c 100644
--- a/tests/Feature/Member/IndexTest.php
+++ b/tests/Feature/Member/IndexTest.php
@@ -80,6 +80,19 @@ class IndexTest extends TestCase
         $this->assertInertiaHas(false, $response, 'data.data.2.is_leader');
     }
 
+    public function testItHasNoEfzLinkWhenAddressIsMissing(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $member = Member::factory()
+            ->defaults()
+            ->has(Membership::factory()->in('€ LeiterIn', 455, 'Pfadfinder', 15))
+            ->create(['address' => null]);
+
+        $response = $this->get('/member');
+
+        $this->assertInertiaHas(null, $response, 'data.data.0.efz_link');
+    }
+
     public function testItShowsAgeGroupIcon(): void
     {
         $this->withoutExceptionHandling()->login()->loginNami();
@@ -93,6 +106,17 @@ class IndexTest extends TestCase
         $this->assertInertiaHas('woelfling', $response, 'data.data.0.age_group_icon');
     }
 
+    public function testAgeIsNullWhenBirthdayIsNull(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $member = Member::factory()->defaults()->create(['birthday' => null]);
+
+        $response = $this->get('/member');
+
+        $this->assertInertiaHas(null, $response, 'data.data.0.age');
+        $this->assertInertiaHas(null, $response, 'data.data.0.birthday');
+    }
+
     public function testItShowsActivitiesAndSubactivities(): void
     {
         $this->withoutExceptionHandling()->login()->loginNami();
diff --git a/tests/Feature/Member/SearchTest.php b/tests/Feature/Member/SearchTest.php
index db17f8e1..2be536ea 100644
--- a/tests/Feature/Member/SearchTest.php
+++ b/tests/Feature/Member/SearchTest.php
@@ -24,5 +24,4 @@ class SearchTest extends TestCase
 
         $this->assertEquals('::firstname:: ::lastname:: Kölner Str 3, 33333 Hilden', $member->search_text);
     }
-
 }
diff --git a/tests/Feature/Member/StoreTest.php b/tests/Feature/Member/StoreTest.php
index 8deaf70e..268cfd8f 100644
--- a/tests/Feature/Member/StoreTest.php
+++ b/tests/Feature/Member/StoreTest.php
@@ -47,7 +47,7 @@ class StoreTest extends TestCase
                 'bill_kind' => 'Post',
                 'salutation' => 'Doktor',
                 'comment' => 'Lorem bla',
-            ]));
+            ]))->assertSessionHasNoErrors();
 
         $response->assertRedirect('/member')->assertSessionHasNoErrors();
         $member = Member::firstWhere('firstname', 'Joe');
@@ -140,6 +140,30 @@ class StoreTest extends TestCase
         ]);
     }
 
+    public function testItDoesntRequireBirthdayWhenNotInNami(): void
+    {
+        $this->login()->loginNami();
+
+        $this
+            ->post('/member', $this->attributes([
+                'nationality_id' => null,
+                'birthday' => null,
+                'has_nami' => false,
+                'address' => null,
+                'zip' => null,
+                'location' => null,
+                'joined_at' => null,
+            ]));
+        $this->assertDatabaseHas('members', [
+            'nationality_id' => null,
+            'birthday' => null,
+            'address' => null,
+            'zip' => null,
+            'location' => null,
+            'joined_at' => null,
+        ]);
+    }
+
     public function testItRequiresFields(): void
     {
         $this->login()->loginNami();
@@ -147,8 +171,13 @@ class StoreTest extends TestCase
         $this
             ->post('/member', $this->attributes([
                 'nationality_id' => null,
+                'birthday' => '',
+                'address' => '',
+                'zip' => '',
+                'location' => '',
+                'joined_at' => '',
             ]))
-            ->assertSessionHasErrors(['nationality_id']);
+            ->assertSessionHasErrors(['nationality_id', 'birthday', 'address', 'zip', 'location', 'joined_at']);
     }
 
     public function testSubscriptionIsRequiredIfFirstActivityIsPaid(): void
diff --git a/tests/Feature/Member/UpdateTest.php b/tests/Feature/Member/UpdateTest.php
index 854e8fb9..e63286a5 100644
--- a/tests/Feature/Member/UpdateTest.php
+++ b/tests/Feature/Member/UpdateTest.php
@@ -73,6 +73,22 @@ class UpdateTest extends TestCase
         ]);
     }
 
+    public function testItSetsLocationToNull(): void
+    {
+        $this->withoutExceptionHandling()->login()->loginNami();
+        $member = $this->member(['location' => 'Hilden', 'nami_id' => null]);
+        $this->fakeRequest();
+        NamiPutMemberAction::allowToRun();
+
+        $this->patch("/member/{$member->id}", array_merge($member->getAttributes(), [
+            'location' => null,
+        ]));
+
+        $this->assertDatabaseHas('members', [
+            'location' => null,
+        ]);
+    }
+
     public function testItUpdatesContact(): void
     {
         $this->withoutExceptionHandling()->login()->loginNami();