SAP Knowledge Base Article - Public

2733850 - SII Tax Return is Returned with Message 'Error técnico en la comunicación sincrónica : SOAP:1,027 SRT: Serialization / Deserialization failed'

Symptom

  • SII Tax Return XX is in status Returned.
  • The FaultString message is: Error técnico en la comunicación sincrónica : SOAP:1,027 SRT: Serialization / Deserialization failed
    (XX represents the VAT Return ID)

Environment

SAP Business ByDesign

Reproducing the Issue

  1. Go to the Tax Management work center.
  2. Go the Tax Returns view.
  3. Go to the VAT Returns subview.
  4. Show All Tax Returns.
  5. Select Tax Return XX.
  6. Click on the View button.
    Note:
    Submission Status: Returned
    Approval Status: Not Started
    Message: Error técnico en la comunicación sincrónica : SOAP:1.027 SRT: Serialization / Deserialization failed

Cause

The Tax Returns are return by the Tax Authority with the message ''Error técnico en la comunicación sincrónica : SOAP:1.027 SRT: Serialization / Deserialization failed'' when some mandatory information is missing.
In this case, the Country Code of some of one of the customers included in the Tax Return XX is missing.

Resolution

The Country Code displayed for the Customers in the Tax Return XX comes from the Main Address maintained in the General tab in the Customer's Master Data.

  1. Go to the Receivables work center.
  2. Go to the Customers view.
  3. Go to the Customers subview.
  4. Find the relevant Customer.
  5. Click on Edit button.
  6. Select General.
  7. Add the Main Address information including the Country Code.
  8. Save.

After above changes have been performed, you will need to reverse the Tax Return XX and then create a new one for the same dates.

Keywords

SII, Suministro Inmediato de Información, Returned, Serialization, Deserialization, Failed, Error , KBA , SRD-FIN-TAX , Tax Management , Problem

Product

SAP Business ByDesign all versions