Credits money from your ledger account into a holder's wallet.

Use it to pay a holder into their wallet instead of to their bank. The money lands in customerCredited, which the
holder can spend and withdraw.

Requires the Wallet Management permission (see Invite Wallet Holder).

How it works. The credit is a payment in one of your batches, created and submitted in the same call, with no
separate approval. Name an existing batch with batchId, or create one with batch. The same tax and fee rules as a
payout apply: tax withholding and fees are deducted, and creditedAmount is what reaches the wallet.

• The holder must have finished onboarding for the tax jurisdiction, or the credit is refused with 409 HOLDER_NOT_PAYABLE.
• The 201 response usually shows payment-created. The credit moves to credited (or failed) shortly after. Follow
  it with Search Wallet Entries, filtering entryId on the creditId. No webhook is sent for credits.

Retries. Send a referenceId. A repeat with the same referenceId and the same terms returns the existing credit
with 200 and never credits twice; after a 5xx, retry this way. "Same terms" means the same sourceAmount, wallet,
holder, payorMemo and batch (batchId, or batch.name and batch.referenceId), plus paymentCategory and payeeMemo
when you send them.

Errors

• 400 VALIDATION_ERROR: a field is missing or invalid. Detail codes include CREDIT_BATCH_REQUIRED (send exactly one of
  batchId and batch), CREDIT_INVALID_PAYMENT_CATEGORY (paymentCategory is required with batch),
  CREDIT_BATCH_INVALID (batch.name is missing or batch.referenceId is not a string), or a field that is not part of
  the request
• 400 CREDIT_INVALID_AMOUNT: sourceAmount has more decimals than the wallet's currency allows
• 400 CREDIT_BATCH_INVALID: the batch does not exist, is archived, or cannot hold credits
• 404 NOT_FOUND: the wallet does not exist, or holderId is not its holder
• 409 CREDIT_ALREADY_EXISTS: a credit with this referenceId exists with different terms
• 409 CUSTOMER_FROZEN: your wallet program is frozen. Contact Payment Labs support
• 409 HOLDER_NOT_PAYABLE: the holder has not finished onboarding. Nothing was recorded; retry with the same
  referenceId once they have