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Requirement :
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Maintenance, improvement, and integration of the billing software EDIS, implemented on ORACLE technology. The software is used for customer billing in guaranteed and commercial supply, as well as for distribution and data exchange with external distribution systems. The maintenance includes regular and emergency maintenance, with regular maintenance focusing on preventive activities to ensure the stable functioning of the software system, and emergency maintenance addressing unexpected software issues. EDIS billing software, ORACLE technology, software maintenance services
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