Posting period locked; specify an alternative date

Typically at the beginning of the year, when the customer create new posting periods, and you want to post a document, you get an SAP error message:

SAP message: Posting period is locked; specify an alternative date

• Check the posting periods
• If you are sure the current period is open, please restart the Service Broker.
  • Sometimes the DI API connection get stuck. This step will create a new SAP DI connection, and updates the periods.