Affinities added in typology or target mapping (SubAffinity) do not match with the affinities on Mid instance.
- For pending deliveries: Add affinities in question on MID instance which allow the pending delivery parts to be sent. Reach out to Customer Care for configuring new affinities.
- For newly created deliveries: Copy the custom target mapping and remove any "SubAffinity." Use this new target mapping for newly created deliveries so that they can be sent and with no impact on old deliveries and RT.
If the Marketing instance is on-premise, make sure when adding affinities to the instance, to contact Customer care and have those affinities configured on the Mid instance as well. If the affinity is not configured properly, deliveries are affected.