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PRINCIPAL ACCOUNTING POLICIES - Summary of total Revenue (Details) - CNY (¥) ¥ in Thousands | 6 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | ¥ 2,250,224 | ¥ 1,956,717 | ¥ 3,428,787 | ¥ 3,168,478
Online recruitment services to enterprise customers |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 2,227,184 | 1,939,919 | 3,391,648 | 3,137,054
Services over a particular subscription period |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 1,647,892 | 1,338,480 |  |
Services with definite and limited numbers |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 579,292 | 601,439 |  |
Others |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 23,040 | 16,798 | ¥ 37,139 | 31,424
Key accounts |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenue, Judgment |  |  | revenue of RMB50 or more annually as key accounts |
Key accounts | Online recruitment services to enterprise customers |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 517,925 | 362,763 | ¥ 775,037 | 643,114
Mid-sized accounts |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenue, Judgment |  |  | revenue between RMB5 and RMB50 annually as mid-sized accounts |
Mid-sized accounts | Online recruitment services to enterprise customers |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | 910,848 | 633,685 | ¥ 1,375,551 | 1,080,514
Small-sized accounts |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenue, Judgment |  |  | revenue of RMB5 or less annually as small-sized accounts |
Small-sized accounts | Online recruitment services to enterprise customers |  |  |  |
PRINCIPAL ACCOUNTING POLICIES |  |  |  |
Revenues | ¥ 798,411 | ¥ 943,471 | ¥ 1,241,060 | ¥ 1,413,426

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