• If the error occurs while adding the gift in Records:
    1. Select Config>Attributes>[Specific Attribute type]. 
    2. For the Attribute noted in the error message, unmark the Allow Only 1 per Record checkbox.
    3. Return to the Record and add the Attribute.
  • If the error occurs while adding the gift in Batch:
    1. Select Config>Attributes>[Specific Attribute type]. 
    2. For the Attribute noted in the error message, unmark the Allow Only 1 per Record checkbox.
    3. Return to the Record and add the Attribute.
OR
  1. Recreate the Batch.