> 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/onboarding/nummernsysteme.md).

# Numbering systems

Die Agenturverwaltung allows the use of complex numbering systems.

Over the past few years, we have encountered quite a few numbering systems (some more, and often less, useful). If there is no reason to do so - e.g. external systems that work with the same numbers - the numbering system should be kept as simple as possible.

The agency software uses standard numbering systems that have proven themselves over the past years with a large number of customers.&#x20;

In the following interactive demo, you will learn\
a) best patterns for numbering systems and\
b) how to configure numbering systems in Die Agenturverwaltung.

{% embed url="<https://app.arcade.software/share/ZP57jN9vIsEXsoiMHzdJ>" %}

### Below you will find further information on best practices for numbering systems:

{% content-ref url="/pages/68d7f2cb322728da9d3b34f97a117216a7b346e7" %}
[Job numbers](/die-agenturverwaltung-en/onboarding/nummernsysteme/projektnummern.md)
{% endcontent-ref %}

{% content-ref url="/pages/128e9aca0056087cdd50fbb63d8fc1a3fa65f2a0" %}
[Estimate numbers](/die-agenturverwaltung-en/onboarding/nummernsysteme/kostenvoranschlagsnummern.md)
{% endcontent-ref %}

{% content-ref url="/pages/361091bc04b2400e4acafe38231f25c5a8fb9b8c" %}
[Order numbers](/die-agenturverwaltung-en/onboarding/nummernsysteme/order-numbers.md)
{% endcontent-ref %}

{% content-ref url="/pages/06687a9e904d3250c96c9319d61fe92c3c12ebe5" %}
[Credit invoice and invoice numbers](/die-agenturverwaltung-en/onboarding/nummernsysteme/gutschrifts-und-rechnungsnummern.md)
{% endcontent-ref %}

{% content-ref url="/pages/d0d0f7884a9ec88f7af6c76dd4b4efcef3a69d55" %}
[Pagination numbers for purchase invoices](/die-agenturverwaltung-en/onboarding/nummernsysteme/paginiernummern-fuer-eingangsrechnungen.md)
{% endcontent-ref %}

## Number ranges can get pretty complicated...

... especially when dependencies on third-party systems come into play.

{% hint style="info" %}
If you have general questions or need a different numbering system due to dependencies on third-party systems, feel free to contact us via our customer service: <info@dieagenturverwaltung.de>
{% endhint %}


---

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