How To Fix 1G638 - No se puede borrar cabecera ya que existe una posición válida

SAP Error Message - Details

• Message type: E = Error

• Message class: 1G - BKK: Konditionen

• Message number: 638

• Message text: No se puede borrar cabecera ya que existe una posición válida

¿Qué causa este problema?

You cannot delete the selected header because there are still positions
in the condition whose <ZK>Valid From</> date (after the deletion) is
before <ZK>Valid From</> date of the header.

¿Cómo arreglar este error?

Delete the corresponding condition position and continue with the
deletion of the header.
When the principle of dual control is activated, the deleted condition
position must already be released. A condition position deletion that
has not yet been released is seen as still existing.

Extracto de mensaje de error del sistema SAP. Copyright SAP SE.