3GPP Scout / Reference / 5GSM causes / 5GSM causes #67 and #69
TS 24.5015GSM cause
Covers
TS 24.501 words these values in parallel, so they share this page. Each has its own section with the spec text and a plain explanation.
In plain words
The network sends this cause for insufficient resources on a specific slice and DNN or exceeded maximum group data rate on their 5G VN group.
Our summary of the spec text quoted below.
Insufficient resources for specific slice and DNN
Source: 3GPP TS 24.501 V20.1.0, clause 9.11.4.2, table 9.11.4.2.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
This 5GSM cause is by the network to indicate that the requested service cannot be provided due to insufficient resources for specific slice and DNN or maximum group data rate on a 5G VN group identified by a specific slice and DNN has been exceeded.
Source: 3GPP TS 24.501 V20.1.0, clause B.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
In plain words
The network uses this cause when requested service cannot be provided on a specific slice. Reasons include insufficient resources, the maximum number of PDU sessions being reached, or the data rate being exceeded.
Our summary of the spec text quoted below.
Insufficient resources for specific slice
Source: 3GPP TS 24.501 V20.1.0, clause 9.11.4.2, table 9.11.4.2.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
This 5GSM cause is used by the network to indicate that the requested service cannot be provided due to insufficient resources for specific slice, maximum number of PDU sessions on a specific slice has been already reached, data rate on a specific slice has been exceeded, or UE-Slice-MBR has been [...]
Source: 3GPP TS 24.501 V20.1.0, clause B.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
3GPP Scout built this page from TS 24.501 V20.1.0 as indexed on 2026-10-15. The quotes are copied from the spec, and code checks each one against the stored text and the 3GPP archive file before publishing. The plain-words lines were written by an AI model (GPT-6 Sol) and checked against the quotes by a second AI model from another company (Claude Opus 5.5). The official 3GPP text governs.