While creating an invoice for a mobile device including a contract the message ‘internal error’ is shown (TQ00104)

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This message can appear if the IMEI (serial number) has already been booked in brodos.net.

To avoid this error please follow the below method:

1. Add the device as usual to your current cash register including IMEI > but please do not add a contract to this position.
2. Add an additional article to the till (e.g. article-number "Optionen").
3. Now add a contract to this additional article.

By this you avoid the error described above.
By doing so the article position of the device might have a negative margin, while the additional article will have a positive margin > in total the margin therefore should be positive also.

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