A method for wireless communication at a user equipment, UE, comprising: identifying that a scheduling request, SR, is to be transmitted on a first uplink control channel message having a first transmission time interval, TTI, duration; identifying that acknowledgment/negative acknowledgment, ACK/NACK, information is scheduled for transmission on a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time; determining that the ACK/NACK information is to be transmitted with the SR on the first uplink control channel message based at least in part on the first uplink control channel message overlapping with the second uplink control channel message; determining resources of the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information; determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; identifying a most recent instance of the first uplink control channel message having the determined format that was indicated to the UE, wherein determining the resources of the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information is based at least in part on the most recent instance; and transmitting the SR and the ACK/NACK information on the determined resources of the first uplink control channel message. identifying that a scheduling request, SR, is to be transmitted on a first uplink control channel message having a first transmission time interval, TTI, duration; identifying that acknowledgment/negative acknowledgment, ACK/NACK, information is scheduled for transmission on a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time; determining that the ACK/NACK information is to be transmitted with the SR on the first uplink control channel message based at least in part on the first uplink control channel message overlapping with the second uplink control channel message; determining resources of the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information; determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; identifying a most recent instance of the first uplink control channel message having the determined format that was indicated to the UE, wherein determining the resources of the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information is based at least in part on the most recent instance; and transmitting the SR and the ACK/NACK information on the determined resources of the first uplink control channel message.