Rückkanal Elster akkzeptiert nur maximal 10 statt der geforderten 60 Zeichen für das Geschäftszeichen
### Description of the bug:
Das Metadatenschema von FIT-Connect schreibt für das Geschäftszeichen vor, dass der String kleiner oder gleich 10 Zeichen sein darf. Die Schnittstellenbeschreibung von Elster-Transfer erlaubt bis zu 60 Zeichen.
### Current behavior:
Die Definition und Dokumentation des Metadatenschemas begrenzt die Anzahl der Zeichen für das Geschäftszeichen auf maximal 10 Zeichen.
### Expected behavior:
Die Schnittstellenbeschreibung von Elster-Transfer erlaubt eine maximale Länge des Geschäftszeichens von 60 Zeichen.
{width=900 height=140}
**Es werden neue Metadatenversionen 1.6.0 und 2.1.0 bereitgestellt.** SSP und SDKs müssen diese zulassen.
### Environments:
DEV, TEST, STAGE, PROD
### Additional Information:
Schnittstellenbeschreibung Elster-Transfer 25.07 vom 12.08.2025
[Schnittstellen_von_ELSTER-Transfer_-_ETR_25.07.pdf](/uploads/f83ed98ecb2ac7cd210dd768cf8a32d0/Schnittstellen_von_ELSTER-Transfer_-_ETR_25.07.pdf)
### Dependency / relationship to other issues:
<!-- Write down here what kind of relationship it is and a brief explanation of it. -->
### Responsible person / team:
<!-- Insert here the name of the person or team responsible for processing the bug. -->
## Transfer history to different teams
<!-- Stories are sometimes assigned to different teams for processing. In this context, it has been found that a history of why the ticket was assigned to a particular team can be very helpful. -->
### Contact persons including contact details:
<!-- Indication of contact persons such as the person who reported the error, how to reach them. -->
### Screenshots / Logs / Requests:
<!-- Insert screenshots or other (visual) aids here if necessary to clarify the bug. -->
### Checklist:
- [ ] Add Severity label
- [ ] Add team label
- [ ] Related/affected issues/stories/epics linked and explained in the bug issue
- [ ] Creation of an automated test
- [ ] Bugfix deployed on DEV
- [ ] Bugfix tested on DEV
- [ ] Bugfix deployed on TEST
- [ ] Bugfix tested on TEST (possibly also by the connection project itself)
- [ ] Successful fix reported to Team Operations (Teams channel)
- [ ] Bugfix deployed on STAGE
- [ ] Bugfix tested on STAGE if necessary
- [ ] Bugfix deployed on PROD
- [ ] Bugfix tested on PROD (possibly also by the connection project itself)
- [ ] Final communication by Team Operations if necessary
- [ ] Internal documentation was checked and updated if necessary
- [ ] External documentation has been checked and updated if necessary
- [ ] Updated changelog if necessary
### Approach/Solution:
<!-- Other comments or notes can be added here, e.g. what has been tried so far to solve the problem. -->
### Release version of the artifact:
issue