> For the complete documentation index, see [llms.txt](https://wiki.dieagenturverwaltung.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.dieagenturverwaltung.de/die-agenturverwaltung-en/finanzen-1/allgemeines-zu-finanzdokumenten/die-positionsliste-1/fremdleistungszuordnung.md).

# External service assignment

In estimates I can see in the "external services" tab whether external services, i.e. services from suppliers that were recorded as purchase invoices, have been posted to an estimate line item.

In invoices billed external services are listed in the "external services" tab.

## Example of application

We calculated 500 EUR for "travel expenses" in an estimate line item.

Two receipts arise for the trip: a ticket for a train journey (200 EUR) and a receipt for an overnight stay in a hotel (150 EUR).

Both external services were posted against my estimate line item "travel expenses".

I can then see in the "external services" tab which external services are assigned to my line item.

If I later bill the estimate, I can see in the invoice line item "travel expenses" in the "external services" tab which external services were billed with this line item, namely the train journey for 200 EUR and the hotel for 150 EUR.

{% embed url="<https://www.youtube.com/watch?v=yKlkhq5IZHg>" %}


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