Hi all! I'd appreciate some help on trying to run a regression through Stata. I am relatively new to Stata so please bear with me.

I am trying to find the correct way to perform a staggered DiD regression where the outcome variable Y is the value of transactions over fortnightly time intervals in different countries before and after a treatment event. With basic panel data I know to xtset in stata by providing the panel id and time variable. However, in my data I am looking at two different types of transactions before and after the event (a control group and treatment group in the form of a dummy variable). This complicates the panel id.

"bifirst_case" represents the number of periods before the treatment takes effect in that country
"countryid" is the country in which the deal is taking place, and "pandemic2" is the dummy measuring whether a deal belongs to the control group or treatment group. "bimonth" is the time variable representing a fortnightly period. "logval" is log of "value" of transaction.

Code:
* Example generated by -dataex-. For more info, type help dataex
clear
bifirst_case bimonth countryid logval pandemic2 panelid value
54 1  22    1.81827 0  32  6.1611904
55 1  48  2.7242925 0  75          15.245625
54 1  45 -.41551545 0  70                .66
54 1 112   2.442263 0 183 11.499035
57 1 104  3.5263605 0 168                 34
56 1  52   1.252763 0  82                3.5
57 1  75  -.8556661 0 117               .425
55 1  38    3.98549 0  60  53.8116
55 1 100  1.2919532 0 161 3.63988
55 1  12  2.2940488 0  16              9.915
55 1 111   .8916701 0 181 2.4392000
54 1  36   1.109034 0  57 3.0314
54 1   5  .59332687 0   5               1.81
53 1  25  3.2770064 0  38 26.49633
54 1 106 -2.4769385 0 172               .084
54 1  99  1.7084503 0 159 5.5203
55 1  35    -.47965 0  55               .619
57 1  79  2.2016592 0 125               9.04
54 1  56   1.926436 0  88              6.865
57 1  50   1.460087 0  79  4.30633
57 1  11  -3.218876 0  14                .04
54 1 114  -.8209805 0 186                .44
57 1  47   3.582963 0  74              35.98
54 1  95  1.7340715 0 151  5.663
57 1  78 -.25489226 0 123               .775
58 1  23  1.0030187 0  34 2.72649
57 1  31  2.3066518 0  48           10.04075
55 1  87  -3.218876 0 140                .04
55 1 103     1.9268 0 166             6.8675
55 1 100   2.484907 1 162                 12
54 1 114  1.0986123 1 187                  3
53 1  25   3.822098 1  39               45.7
57 1  11  -3.218876 1  15                .04
57 1  98   .8837675 1 158               2.42
55 1 111   2.944439 1 182                 19
54 1  22  1.9603295 1  33 7.10166
57 1  50 -.10314076 1  80               .902
55 1  12  1.2837077 1  17               3.61
55 1  87  -3.218876 1 141                .04
54 1  56   2.926382 1  89              18.66
54 1  36  1.1118575 1  58               3.04
55 1  53  1.9789304 1  85              7.235
57 1  17  1.9600948 1  24                7.1
54 1 112  2.0537095 1 184  7.796769
54 1  68   .9555115 1 107                2.6
54 1   5   1.974081 1   6                7.2
55 2 103  1.5534317 0 166  4.727666
57 2  84  -1.258781 0 134               .284
57 2  31  -.8891621 0  48               .411
58 2  55   .6523252 0  87               1.92
54 2  68  1.2933564 0 106              3.645
54 2  99   3.391551 0 159 29.7119
57 2  78   2.589642 0 123             13.325
54 2  56  1.8112516 0  88             6.1181
54 2   5  .11800523 0   5 1.12524999
55 2 100  .22314355 0 161               1.25
57 2  15   3.753027 0  21              42.65
57 2  93  -3.296837 0 148               .037
54 2 112  1.8774613 0 183  6.536888
57 2  49   1.050909 0  77            2.86025
57 2  17   .9243912 0  23 2.52033
57 2   6    .896088 0   7               2.45
54 2 106   2.683074 0 172              14.63
53 2  25  3.8385315 0  38  46.4571
55 2  53  1.3763703 0  84             3.9605
58 2 102  -.4684049 0 165               .626
56 2  52  2.5971186 0  82             13.425
54 2  95   .4187103 0 151               1.52
55 2 111   1.314249 0 181 3.721954
55 2  35  .13540463 0  55              1.145
54 2  22   2.206967 0  32  9.0881111
58 2  29  2.1494339 0  44               8.58
57 2  75  2.0524557 0 117  7.78700
57 2  50  -.3930426 0  79               .675
55 2  12   1.510722 0  16               4.53
57 2  83   .9038132 0 132 2.469000
55 2  48  1.0598137 0  75 2.8858
55 2  87  -.3047152 0 140  .737333
54 2  36  2.0859354 0  57            8.05212
54 2  45  2.3042505 0  70 10.01666
55 2  38  1.5882143 0  60 4.89500
57 2 104  1.0078211 0 168 2.7396
55 2 110 -1.2039728 1 180                 .3
54 2  36  1.1776289 1  58  3.246
54 2 112   2.398777 1 184 11.0
55 2 111   .9341307 1 182              2.545
54 2  56   1.113501 1  89              3.045
55 2  48   2.605894 1  76 13.5433
54 2  95  -.2015044 1 152              .8175
55 2 103  4.2195077 1 167                 68
55 2 100   .8754687 1 162                2.4
54 3 112   2.501697 0 183 12.2
55 3  35   2.912799 0  55           18.4
54 3  95   1.041272 0 151  2.8328
55 3 110   2.995732 0 179                 20
57 3  81  1.5040774 0 129                4.5
54 3  22  2.2976012 0  32  9.9502
54 3  56   1.907829 0  88  6.73
54 3 114   3.633895 0 186              37.86
57 3  50  -.4764242 0  79               .621
end

Would doing the following be correct for declaring panel data?

Code:
 egen panelid = group(countryid pandemic2)
xtset panelid bimonth

Thank you in advance