The 3rd level supporter is usually provided by the hardware or software manufacturer. He usually works on the request of the 2nd level support a problem or task following a request from a user or customer.

In the context of SAP Business One, the term 3rd level support refers to a level of advanced technical support that is utilised when the first two support levels - 1st level support and 2nd level support - are not able to effectively solve a specific problem. This level of support is specifically designed to solve more complex problems and fix errors, which often requires the involvement of qualified technical specialists such as SAP developers or experts with extensive knowledge of the product architecture and code.
In this phase, the 3rd level support specialists are responsible for solving the most complex problems that could not be resolved by the two previous support levels. Such problems can include software errors, complex customisations or integration problems. Due to the higher complexity of such problems, 3rd level support specialists need to have a deeper understanding of the underlying architecture, code and inner workings of the software product.
Third level support professionals may need to liaise with other experts, developers or even the product management team to determine the cause of the problem and find a solution so that these more difficult issues can be resolved efficiently. To fully resolve the current issue, it may also be necessary to implement software updates or changes.
To summarise, 3rd Level Support is an essential part of the SAP Business One support infrastructure, providing state-of-the-art technical assistance to solve even the most difficult problems.
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