Created a batch via https://api.sky.blackbaud.com/gift-batch/v1/giftbatches
Then added a gift to it via https://api.sky.blackbaud.com/gift/v1/giftbatches/{batch_id}/gifts
Wanting to add attributes/custom field via https://api.sky.blackbaud.com/gift/v1/gifts/customfields
But the response from adding the gift to batch doesn't contain any ids that work.
Am I doing something wrong, or is this feature just not possible?
There was reason change to AddGiftsToBatch where you can add a array of custom fields to the gifts.
Have look at the updated documents:
