diff --git a/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql b/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
index 85ae350f4594..35d8096b440d 100644
--- a/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
+++ b/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
@@ -13,5 +13,12 @@
 -- Drop the NOT NULL constraint on user_id column
 ALTER TABLE process ALTER COLUMN user_id DROP NOT NULL;
 
+-- Sets null the invalid user_id inside the process table
+UPDATE process
+set user_id = null
+where not exists(
+    select 1 from eperson where eperson.uuid = user_id
+);
+
 -- Add the foreign key constraint with ON DELETE SET NULL
 ALTER TABLE process ADD CONSTRAINT user_id FOREIGN KEY (user_id) REFERENCES eperson (uuid) ON DELETE SET NULL;
\ No newline at end of file
diff --git a/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql b/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
index 85ae350f4594..35d8096b440d 100644
--- a/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
+++ b/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.6_2024.04.23__alter_table_process_add_foreign_key_on_user_id.sql
@@ -13,5 +13,12 @@
 -- Drop the NOT NULL constraint on user_id column
 ALTER TABLE process ALTER COLUMN user_id DROP NOT NULL;
 
+-- Sets null the invalid user_id inside the process table
+UPDATE process
+set user_id = null
+where not exists(
+    select 1 from eperson where eperson.uuid = user_id
+);
+
 -- Add the foreign key constraint with ON DELETE SET NULL
 ALTER TABLE process ADD CONSTRAINT user_id FOREIGN KEY (user_id) REFERENCES eperson (uuid) ON DELETE SET NULL;
\ No newline at end of file