Error: Acceptance/Rejection failed when Post-Billing Customer Acceptance (Doc ID 1931948.1)

Symptoms

On : 12.1.3 version, Transaction Fulfillment

When Customer Acceptance by Implicit Acceptance or Explicit Acceptance for Sales Order Line Status "Pending post-billing acceptance", can not accept by following error.

ERROR
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Error massage when Explicit Acceptance

  Acceptance/Rejection failed.
  Error:


STEPS
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The issue can be reproduced at will with the following steps:

1. Create and Booking Sales Order as Post-Billing Acceptance
2. Pick , Ship and Auto Invoice. Line Status becomes "Pending post-billing acceptance".
3. Explicit Acceptance
　　OM(N)Order,Return ->Order Header Form(B)Actions -> Fulfillment Acceptance -> Submit
4. Error occurred

Acceptance/Rejection failed.
  Error:

Cause

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