diff --git a/wger/manager/migrations/0018_flexible_routines.py b/wger/manager/migrations/0018_flexible_routines.py
index 5ad4332fd..85ab3a30e 100644
--- a/wger/manager/migrations/0018_flexible_routines.py
+++ b/wger/manager/migrations/0018_flexible_routines.py
@@ -409,6 +409,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -460,6 +464,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -517,6 +525,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -573,6 +585,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -624,6 +640,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -675,6 +695,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -726,6 +750,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -777,6 +805,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -828,6 +860,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
@@ -878,6 +914,10 @@ class Migration(migrations.Migration):
                         to='manager.slotentry',
                     ),
                 ),
+                (
+                    'requirements',
+                    models.JSONField(default=None, null=True),
+                )
             ],
             options={
                 'ordering': ['slot_entry', 'iteration'],
diff --git a/wger/manager/models/abstract_config.py b/wger/manager/models/abstract_config.py
index 85f749a25..bc3a94e24 100644
--- a/wger/manager/models/abstract_config.py
+++ b/wger/manager/models/abstract_config.py
@@ -85,8 +85,14 @@ class Meta:
     different change.
     """
 
+    requirements = models.JSONField(
+        default=None,
+        null=True,
+    )
+    """Requirements for the application of this rule as JSON"""
+
     @property
-    def replace(self):
+    def replace(self) -> bool:
         """
         Flag indicating that there is no increase, but that the value will simply
         be replaced with the new one